题解 | #计算商场折扣#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        int price = console.nextInt();
        double cost = 0;

        if(price >= 5000){
            cost = 0.6;
        }else if(price >= 2000){
            cost = 0.7;
        }else if(price >= 500){
            cost = 0.8;
        }else if(price >= 100){
            cost = 0.9;
        }else{
            cost = 1;
        }

        Double num = price * cost;
        
        System.out.println(num.intValue());
    }
}